linux-kernel - Re: [PATCH-v3 06/11] i2c:pxa: Use devm

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20150710081801.GD1528@katana>
Date:	Fri, 10 Jul 2015 10:18:01 +0200
From:	Wolfram Sang <wsa@...-dreams.de>
To:	Vaibhav Hiremath <vaibhav.hiremath@...aro.org>
Cc:	linux-i2c@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	robert.jarzmik@...e.fr, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org, robh+dt@...nel.org
Subject: Re: [PATCH-v3 06/11] i2c:pxa: Use devm_ variants in probe function

> -	i2c = kzalloc(sizeof(struct pxa_i2c), GFP_KERNEL);
> +	i2c = devm_kzalloc(&dev->dev, sizeof(struct pxa_i2c), GFP_KERNEL);
>  	if (!i2c) {
> -		ret = -ENOMEM;
> -		goto emalloc;
> +		dev_err(&dev->dev, "memory allocation failed\n");

No message here, we get a dump anyhow.

> +	res = platform_get_resource(dev, IORESOURCE_MEM, 0);
> +	if (!res) {
> +		dev_err(&dev->dev, "no mem resource\n");
> +		return -ENODEV;
> +	}

You can skip this check, devm_ioremap_resource will do it.

> +		dev_err(&dev->dev, "failed to get the clk: %ld\n",
> +			PTR_ERR(i2c->clk));

Sidenote for all patches: I am not so strict with the 80 char limit. I'd
think the above code would be more readable if it was one line. But you
decide.


Download attachment "signature.asc" of type "application/pgp-signature" (820 bytes)